JP3198962B2 - Method of forming grommet waterproof structure through wire harness - Google Patents
Method of forming grommet waterproof structure through wire harnessInfo
- Publication number
- JP3198962B2 JP3198962B2 JP02942797A JP2942797A JP3198962B2 JP 3198962 B2 JP3198962 B2 JP 3198962B2 JP 02942797 A JP02942797 A JP 02942797A JP 2942797 A JP2942797 A JP 2942797A JP 3198962 B2 JP3198962 B2 JP 3198962B2
- Authority
- JP
- Japan
- Prior art keywords
- grommet
- wire
- electric wire
- waterproof structure
- wire harness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Installation Of Indoor Wiring (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、自動車のパネル貫
通穴へワイヤハーネスを挿通した状態で装着されるグロ
メットの防水構造の形成方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a waterproof structure of a grommet which is mounted with a wire harness inserted into a panel through hole of an automobile.
【０００２】[0002]
【従来の技術】自動車用ワイヤハーネスにおいて、自動
車のエンジンルームと車室とを仕切るパネル等を通して
ワイヤハーネスを配線する場合、パネルに穿設した貫通
穴にゴム製のグロメットを装着し、該グロメットを通し
てワイヤハーネスを配線し、車室側へ浸水を防止してい
る。2. Description of the Related Art In a wiring harness for an automobile, when wiring the wiring harness through a panel or the like that separates an engine room and a vehicle compartment of a vehicle, a rubber grommet is attached to a through hole formed in the panel and the grommet is passed through the grommet. The wiring harness is wired to prevent water from entering the cabin.
【０００３】上記グロメットは略円錐筒形状とした拡径
部の外周面にパネル係止部を設け、該パネル係止部をパ
ネル貫通穴の内周縁に係止し、グロメットとパネル貫通
穴との間は確実にシールして防水を図る一方、グロメッ
トに拡径部の縮小端側に延在させた縮径管部にワイヤハ
ーネスを密着させて通している。The grommet has a panel engaging portion provided on an outer peripheral surface of an enlarged portion having a substantially conical cylindrical shape, and the panel engaging portion is engaged with an inner peripheral edge of the panel through-hole. The gap is securely sealed for waterproofing, and the wire harness is passed through the grommet to the reduced diameter tube portion extending to the reduced end side of the enlarged diameter portion.
【０００４】上記グロメットを挿通するワイヤハーネス
の各電線の間及び各電線とグロメットの管部との間に隙
間があると、該隙間を通してエンジンルーム側より車室
内に浸水が生じるため、これら隙間もシールする必要が
ある。[0004] If there are gaps between the electric wires of the wire harness through which the grommet is inserted and between the electric wires and the grommet tube, water is generated in the vehicle interior from the engine room side through the gaps. Need to be sealed.
【０００５】この線間防水構造としては、図５に示すよ
うな、グロメット１の拡径部１ａより流動性シール材２
を充填して、電線ｗの各隙間に浸透させるものが提供さ
れている。あるいは、図６に示すような、ワイヤハーネ
スの各電線を１本ずつ挿通させる穴を複数個備えた弾性
キャップを用い、該弾性キャップに穴に電線を通した状
態で弾性キャップをグロメットの管部に嵌め込み、拡径
部側から弾性キャップの内側まで流動性シール材を充填
するものも提供されている。（実開平１−６６７１３号
公報、実開平２−１１５２２１号公報、実開平４−２３
８１２号公報参照）As the waterproof structure between lines, as shown in FIG.
Is provided to infiltrate each gap of the electric wire w. Alternatively, as shown in FIG. 6, an elastic cap having a plurality of holes through which each electric wire of the wire harness is inserted one by one is used, and the elastic cap is attached to the elastic cap with the electric wires passed through the holes. There is also provided one that is fitted with a fluid sealing material from the enlarged diameter portion side to the inside of the elastic cap. (Japanese Utility Model Laid-Open No. 1-66713, Japanese Utility Model Laid-Open No. 2-115221, Japanese Utility Model Laid-open No. 4-23)
No. 812)
【０００６】[0006]
【発明が解決しようとする課題】上記図５に示す前者の
防水構造とする場合、流動性シール材が低粘度（例えば
１００ｐｏｉｓｅ以下）でないと電線間の各隙間に浸透
しにくく、逆に低粘度であると、硬化するまでに各隙間
から流れ出すおそれがあるので、完全な防水は望めな
い。よって、一般に、粘度の低い二液ウレタン等（二液
性エポキシ、二液性シリコン等）を用い、図６に示すよ
うに、ワイヤハーネスＷ／Ｈの所定位置にグロメットを
取り付けた後、該グロメット１へ二液性ウレタン等を混
合しながら充填し、充填後に乾燥硬化させている。In the case of the former waterproof structure shown in FIG. 5, unless the fluid sealing material has a low viscosity (for example, 100 poise or less), it hardly penetrates into the gaps between the electric wires, and conversely has a low viscosity. In this case, complete waterproofing cannot be expected because there is a possibility that the water will flow out of each gap until the resin is cured. Therefore, generally, a grommet is attached to a predetermined position of the wire harness W / H as shown in FIG. 6 by using a low-viscosity two-component urethane (two-component epoxy, two-component silicon, or the like). 1 is filled while mixing a two-part urethane or the like, and then dried and cured after filling.
【０００７】しかしながら、二液性ウレタン等の二液を
混合させて使用するために、手間がかかると共に、一度
に混合した液剤は空気中で簡単に硬化してしまうため、
取り扱いが非常に難しい。また、二液を混合させる設備
が大掛かりで、ワイヤハーネスの組立ライン上で作業で
きず、別工程を設けてシール剤を充填しなければならな
い問題がある。However, it is troublesome to use a mixture of two liquids such as two-part urethane, and the liquids mixed at one time are easily cured in the air.
Very difficult to handle. In addition, there is a problem in that the equipment for mixing the two liquids is large-sized and cannot be operated on a wire harness assembly line, and a separate process must be provided to fill the sealant.
【０００８】一方、後者の防水構造では、電線間に確実
に隙間ができるので、流動性シール材が高粘度であって
も電線間の隙間に容易に浸透して完全な防水は可能であ
るが、別部品の弾性キャップを必要とするうえ、キャッ
プに各電線を挿通させる工程とキャップをグロメットに
嵌め込む工程とが増加して手数がかかり、コストアップ
になる。しかも、各電線の隙間の分だけグロメットの拡
径部が太くなって、グロメットが大型化する問題があ
る。On the other hand, in the latter waterproof structure, since a gap is reliably formed between the electric wires, even if the fluid sealing material has a high viscosity, it can easily penetrate into the gap between the electric wires to achieve perfect waterproofing. In addition, a separate elastic cap is required, and the number of steps for inserting each electric wire through the cap and the step of fitting the cap to the grommet are increased. In addition, there is a problem that the diameter of the enlarged portion of the grommet is increased by an amount corresponding to the gap between the electric wires, and the grommet is enlarged.
【０００９】本発明は上記問題を解消するためになされ
たもので、工程が比較的簡単でコストアップが少なく、
完全な防水が可能なワイヤハーネスの防水構造の形成方
法を提供することを課題としている。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and the process is relatively simple and the cost is small.
An object of the present invention is to provide a method for forming a waterproof structure of a wire harness that can be completely waterproofed.
【００１０】[0010]
【課題を解決するための手段】上記課題を達成するため
に、本発明は、ワイヤハーネスを挿通した状態で、パネ
ル貫通穴へ装着されるグロメットの防水構造を形成する
方法であって、ハーネスを組立時に電線群を布線する
時、上記線間防水を施す部位の電線群を一対の電線保持
材の電線挿入用長穴に挿入させると共に、挿入した該電
線群を隣接させて１列に並列させ、該並列した電線群に
対して、所要の粘度を有する止水剤を電線間に浸透する
ように塗布し、次いで、該止水剤を塗布した部分に弾性
を有する独立発泡形状の発泡材シートを被せて断面円形
に丸めて、上記グロメットの内部に通すことを特徴とす
るワイヤハーネスを挿通した防水構造の形成方法を提供
している。According to the present invention, there is provided a method of forming a waterproof structure for a grommet to be mounted in a panel through-hole with a wire harness inserted therein. When laying the wire group at the time of assembling, the wire group of the portion to be waterproofed between the wires is inserted into the wire insertion elongated holes of the pair of wire holding members, and the inserted wire groups are adjacently arranged in a row. Then, a waterproofing agent having a required viscosity is applied to the parallel electric wire group so as to penetrate between the electric wires, and then, a foamed material having a closed cell shape having elasticity at a portion where the waterproofing agent is applied. The present invention provides a method for forming a waterproof structure in which a wire harness is inserted, wherein a sheet is covered, the cross section is rounded, and the sheet is passed through the grommet.
【００１１】[0011]
【００１２】[0012]
【００１３】上記のように、ワイヤハーネス組立ライン
上において電線布線時に、一列に整列させ、この状態の
電線群に対して所要の粘度を有する止水剤を塗布する
と、各電線の表面に確実に止水剤が塗布されると共に、
電線間の隙間にも浸透させるように塗布すると、電線表
面および電線間に確実に止水剤を塗布できる。その後、
これら電線群に弾性を有する発泡材シートをを被せて取
り出すと、作業者の手に止水剤が付着することなく取り
出され、かつ、表面側の発泡材シートより一列に並列し
ている電線群を断面円形に丸めることが容易にでき、止
水剤の流動、拡散を、ある程度、防止できる。As described above, when wires are arranged on the wire harness assembly line at the time of wiring, and a group of wires in this state is coated with a water-stopping agent having a required viscosity, the surface of each wire can be securely applied. A waterproofing agent is applied to
When applied so as to penetrate into the gaps between the electric wires, the waterproofing agent can be surely applied to the surfaces of the electric wires and between the electric wires. afterwards,
When an electric foam sheet having elasticity is put on these electric wire groups and taken out, the electric wire groups are taken out without attaching the waterproofing agent to the hands of the workers, and are arranged in a line from the foam material sheet on the front side. Can be easily rounded into a circular cross section, and the flow and diffusion of the water stopping agent can be prevented to some extent.
【００１４】しかしながら、発泡材シートを丸めた後
に、グロメットに通して取りつけるが、通常、作業工程
のスピード化を図るために、止水剤が完全に硬化してい
ない間に、上記グロメットの取付作業が行われる。この
時、グロメットの縮径部を押し広げて通すが、挿通した
後に、グロメットの収縮力が止水剤に負荷され、止水剤
が軸線方向に流れやすい。止水剤が流れると、その分、
電線群の外径が減少し、グロメット内周面との間に隙間
が発生することとなる。しかしながら、本発明では、弾
性を有する発泡材シートで止水剤が塗布された電線群を
包んでいるため、この発泡材シートが電線群とグロメッ
トとの間に介在し、止水剤が流れたことにより隙間が発
生しても、この隙間を上記弾性を有する発泡材シートが
膨張して埋めることにより、隙間グロメット内部に隙間
を発生することを確実に防止できる。However, after the foamed material sheet is rolled, it is mounted through a grommet. Usually, in order to speed up the working process, the mounting work of the grommet is performed while the waterproofing agent is not completely cured. Is performed. At this time, the reduced diameter portion of the grommet is pushed and spread, and after the grommet is inserted, the contraction force of the grommet is applied to the waterproofing agent, so that the waterproofing agent easily flows in the axial direction. When the waterproofing agent flows,
The outer diameter of the electric wire group decreases, and a gap is generated between the electric wire group and the inner peripheral surface of the grommet. However, in the present invention, since the electric wire group coated with the waterproofing agent is wrapped by the elastic foam material sheet, this foam material sheet is interposed between the electric wire group and the grommet, and the waterproofing agent flows. Accordingly, even if a gap is generated, the gap is filled with the foamed material sheet having elasticity, whereby the gap can be reliably prevented from being generated inside the gap grommet.
【００１５】[0015]
【発明の実施の形態】以下、本発明の実施形態を図面を
参照して説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１６】図１に示すようにワイヤハーネス組立用の
布線台１０上に防水用治具１１を設置しており、防水用
治具１１は、布線台１０上に着脱自在に取り付ける支持
軸１２と、該支持軸１２の上端に固定した基板１３と、
該基板１３上から所要間隔をあけて突出させた一対の電
線保持材１４、１５とを備えている。As shown in FIG. 1, a waterproof jig 11 is installed on a wiring table 10 for assembling a wire harness. The waterproof jig 11 is supported on a wiring shaft 10 so as to be detachable. 12, a substrate 13 fixed to the upper end of the support shaft 12,
A pair of wire holding members 14 and 15 projecting from the substrate 13 at a required interval are provided.
【００１７】上記一対の電線保持材１４と１５は基板１
３の上面に固定しており、電線ｗを上端開口１４ｂ、１
５ｂから挿入させると共に挿入した電線ｗを一列に並列
させる細幅な電線挿入用長穴１４ａ、１５ａを備え、こ
れら電線挿入用長穴の上端開口の両面１４ｃ、１５ｃは
先端を開き方向に傾斜させている。The pair of wire holding members 14 and 15 are
3, and the electric wire w is fixed to the upper end opening 14b, 1
5b, and has narrow holes 14a, 15a for inserting the electric wires w in parallel in a line. Both surfaces 14c, 15c of the upper end openings of these electric holes for inserting the electric wires have their tips inclined in the opening direction. ing.
【００１８】上記した防水用治具１１を用いて、図２に
示すように、まず、ワイヤハーネス組立時に、布線台１
０上で、電線ｗを他の電線受治具２０で電線を保持して
布線していく。グロメットを取り付ける部位には、布線
用治具１１を配置しており、一対の電線保持材１４と１
５との間に電線群Ｗを挿入する。該挿入時、これら電線
保持材１４と１５の電線挿入用長穴１４ａ、１５ａにお
いて、上端開口１４ｂ、１５ｂの両側が傾斜して開いて
いるため、塊状で電線群Ｗを配置しても、これら電線群
Ｗを押し込むと、電線ｗが１本づつ整列した状態で長穴
１４ａ、１５ａに押し込まれる。すなわち、図２（Ａ）
に示すように、防水区間Ｘにおいて、垂直方向に１列に
隣接して並んだ状態で布線される。As shown in FIG. 2, first, when assembling the wire harness, the wiring board 1 is used by using the waterproof jig 11 described above.
On the wire 0, the electric wire w is wired while holding the electric wire with another electric wire receiving jig 20. A wiring jig 11 is disposed at a portion where the grommet is to be attached, and a pair of wire holding members 14 and 1 are provided.
5 and the wire group W is inserted. At the time of insertion, in the wire insertion slots 14a, 15a of the wire holding members 14 and 15, both ends of the upper end openings 14b, 15b are inclined and open. When the electric wire group W is pushed in, the electric wires w are pushed into the elongated holes 14a and 15a in a state of being aligned one by one. That is, FIG.
As shown in (1), in the waterproof section X, the wires are laid in a state of being arranged adjacent to one row in the vertical direction.
【００１９】電線群をＷを布線台１０上で布線終了した
後、止水剤２５を充填している塗布具２６を用いて、防
水区間Ｘの電線群Ｗに対して止水剤２５を塗布してい
く。上記塗布具２６は、チューブ２７の先端に偏平はヘ
ラ部２７ａを備え、該ヘラ部２７ａの先端に所要ピッチ
でノズル２７ｂを設けている。よって、チューブ２７を
押すと、ヘラ部２７ａを通してノズル２７ｂより止水剤
２５が押し出される。After completing the wiring of the wire group W on the wiring board 10, the waterproofing agent 25 is applied to the wire group W in the waterproof section X by using the applicator 26 filled with the waterproofing agent 25. Is applied. The applicator 26 has a flat spatula 27a at the tip of a tube 27, and nozzles 27b at the required pitch at the tip of the spatula 27a. Therefore, when the tube 27 is pushed, the water stopping agent 25 is pushed out from the nozzle 27b through the spatula 27a.
【００２０】上記止水剤２５は粘度１０００〜２０００
ｐｏｉｓｅのもので、シリコン系止水剤、変性エステル
樹脂、合成ゴム系止水剤等を用いている。上記塗布具２
６は所要ピッチでノズル２７ｂを３個設けているため、
図２（Ｂ）に示すように、防水区間Ｘの上端から下端に
かけて、一度塗布していくと、塗布された止水剤がある
程度横方向に広がるため、防水区間Ｘの全域に止水剤２
５が塗布された状態となる。The water-stopping agent 25 has a viscosity of 1,000 to 2,000.
Poise, a silicone-based water stopping agent, a modified ester resin, a synthetic rubber-based water stopping agent, etc. are used. The above applicator 2
6 is provided with three nozzles 27b at the required pitch,
As shown in FIG. 2 (B), once applied from the upper end to the lower end of the waterproof section X, the applied waterproofing agent spreads to some extent in the horizontal direction.
5 is applied.
【００２１】ついで、図２（Ｃ）に示すように、防水用
治具１１の支持棒１２を布線台１０より下降させる。基
板１３が布線台１０上に当たると停止する。基板１３の
下降により、電線保持材１４、１５も下降し、止水剤３
０が塗布された電線群Ｗが防水用治具１１から取り外さ
れた状態となる。Next, as shown in FIG. 2C, the support bar 12 of the waterproof jig 11 is lowered from the wiring stand 10. When the board 13 hits on the wiring board 10, it stops. As the substrate 13 descends, the wire holding members 14 and 15 also descend, and the water stopping agent 3
The wire group W to which 0 has been applied is removed from the waterproof jig 11.
【００２２】上記のように防水用治具１１から外した
後、防水区間Ｘの止水剤２５が塗布された電線群Ｗの表
面に弾性を有する薄い発泡材シート２３を被せる。本実
施形態では上記発泡材シート２３としてネオプレンゴム
からなる図３に示す独立発泡の発泡材シートを用いてい
る。該発泡材シート２３は片面に離型紙２９が貼付され
ており、該離型紙２９を剥がして電線群Ｗにかぶせてい
る。なお、ポリウレタンからなる発泡材でもよく、弾性
を有し、微小な隙間も埋めるような独立発泡形状の発泡
材であれば好適に用いられる。After the jig 11 is detached from the waterproofing jig 11 as described above, a thin foam sheet 23 having elasticity is put on the surface of the wire group W to which the waterproofing agent 25 of the waterproofing section X is applied. In the present embodiment, the foamed material sheet 23 is a foamed sheet made of neoprene rubber and shown in FIG. A release paper 29 is attached to one side of the foam material sheet 23, and the release paper 29 is peeled off and covered with the electric wire group W. It should be noted that a foamed material made of polyurethane may be used, and any foamed material having elasticity and having an independently foamed shape that fills minute gaps is preferably used.
【００２３】上記のように発泡材シート２３を被せるこ
とにより、作業員の手に止水剤２５が付くことが防止で
きる。発泡材シート２３を被せた後、図２（Ｄ）に示す
ように、発泡材シート２３内で電線ｗを丸めて断面円形
状とする。By covering the foam material sheet 23 as described above, the waterproofing agent 25 can be prevented from sticking to the hands of the worker. After covering the foam material sheet 23, as shown in FIG. 2D, the electric wire w is rounded in the foam material sheet 23 to have a circular cross section.
【００２４】ついで、図２（Ｅ）に示すように、グロメ
ット３０を防水区間Ｘに通して、電線群Ｗにグロメット
３０を取り付ける。Next, as shown in FIG. 2 (E), the grommet 30 is passed through the waterproof section X, and the grommet 30 is attached to the wire group W.
【００２５】上記グロメット３０の取付作業は、作業の
能率化より、止水剤２５が完全に硬化しない前に行われ
る。グロメット３０への挿通作業時には、グロメット３
０の縮径部３０ａを拡げ機（図示せず）により押し広げ
て上記電線群を挿通させるが、挿通後に拡げ機を抜き出
すと、グロメット３０の収縮力が縮径部３０ａの電線群
Ｗに負荷されることとなる。よって、まだ、硬化してい
ない止水剤２５が図４に示すように、電線の長手方向に
沿って流れることになる。The work of mounting the grommet 30 is performed before the water-stopping agent 25 is not completely cured due to the efficiency of the work. When inserting the grommet 30, the grommet 3
The diameter-reduced portion 30a is pushed and spread by an expander (not shown) to allow the wire group to pass therethrough. Will be done. Therefore, the water-stopping agent 25 that has not yet been cured flows along the longitudinal direction of the electric wire as shown in FIG.
【００２６】上記のように止水剤２５が流れると、電線
群Ｗの外径が縮小するが、電線群Ｗの外周を弾性を有す
る発泡材シート２３でラップしているため、該発泡材シ
ート２３が発生した隙間を埋めるように膨張して、図４
に示すように、隙間を発生させない。When the water-stopping agent 25 flows as described above, the outer diameter of the wire group W is reduced. However, since the outer periphery of the wire group W is wrapped with the elastic foam sheet 23, the foam sheet 4 expands to fill the gap generated, and FIG.
No gap is generated as shown in FIG.
【００２７】なお、止水剤２５を充填した電線群Ｗを単
なる樹脂フィルムで覆った場合、グロメットを外嵌した
時にフィルムに皺が発生して、隙間が生じるが、上記の
ように弾性を有する発泡材シート２３で覆い、グロメッ
ト３０の収縮力で圧縮状態となっていると、隙間を発泡
材シート２３が復元して埋めるため、上記のように隙間
を発生させない。When the wire group W filled with the water blocking agent 25 is covered with a mere resin film, wrinkles are generated in the film when the grommet is externally fitted, and a gap is generated. When covered with the foam material sheet 23 and compressed by the contraction force of the grommet 30, the gap is not generated as described above because the foam material sheet 23 is restored and filled.
【００２８】[0028]
【発明の効果】以上の説明より明らかなように、本発明
によれば、止水剤を充填した電線群の外周を弾性を有す
る発泡材シートを圧縮した状態で覆っているため、止水
剤が流れた場合に上記発泡材シートが復元して、止水剤
の流失により生じる隙間を埋めるため、隙間を発生させ
ず、防水性能を高めることができる。As is apparent from the above description, according to the present invention, since the outer periphery of the wire group filled with the waterproofing agent is covered in a compressed state with the elastic foam material sheet, the waterproofing agent is provided. When the water flows, the foam material sheet is restored and the gap generated by the loss of the water-stopping agent is filled, so that no gap is generated and the waterproof performance can be improved.
【００２９】かつ、上記発泡材シートとして独立発泡の
形態のものを用いるているため、水および空気も通さ
ず、防水性能をより向上させることができる。In addition, since the foamed material sheet is in the form of closed foam, it is impermeable to water and air, so that the waterproof performance can be further improved.
【００３０】また、ワイヤハーネス組立ライン上におい
て電線布線時に、グロメットを取り付けて防水処理を施
す必要がある部位の電線群に、止水剤を塗布しておくこ
とができる。すなわち、従来、別工程でせざるを得なか
った止水剤塗布工程をワイヤハーネス組立ライン上でで
き、防水処理工程の簡易化およびスピード化を図ること
ができる。In addition, when a wire is laid on the wire harness assembly line, a waterproofing agent can be applied to a group of wires where a grommet is required to be waterproofed. That is, the waterproofing agent application step which had to be conventionally performed in a separate step can be performed on the wire harness assembly line, and the waterproofing step can be simplified and speeded up.
【００３１】また、１列に並列させた電線群に対してチ
ューブ等より止水剤を押し出しながら塗布していくた
め、止水剤の無駄がなくなり、従来の使用量の半分でよ
くなる。実際、従来の１つのグロメット内に１０ｇ〜３
０ｇの止水剤を充填していたのが、本発明の方法によれ
ば、５ｇ〜１０ｇ程度でよくなる。このように、使用止
水剤の量を半減できるため、コストの低減を図ることが
できる。Further, since the water-stopping agent is applied to the group of electric wires arranged in a row while being pushed out from a tube or the like, the water-stopping agent is not wasted, and the amount of the water-stopping agent can be reduced to half of the conventional amount. In fact, 10 g-3 g in one conventional grommet
According to the method of the present invention, 0 g of the water-stopping agent has been filled, but only about 5 g to 10 g is sufficient. As described above, since the amount of the used waterproofing agent can be reduced by half, the cost can be reduced.
【００３２】さらにまた、本発明の方法は、一対の電線
保持材を備えた簡単な構造の防水用治具を用いて簡単に
行うことができる。よって、設備を簡単に設けることが
でき、容易に実施できる利点を有するものである。Furthermore, the method of the present invention can be easily performed using a waterproof jig having a simple structure provided with a pair of wire holding members. Therefore, the equipment can be easily provided, and has an advantage that it can be easily implemented.
【図１】 本発明の実施形態を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of the present invention.
【図２】 （Ａ）乃至（Ｅ）は防水構造の形成工程を示
す図面である。FIGS. 2A to 2E are views showing a process of forming a waterproof structure.
【図３】 実施形態に用いる発泡材シートを示し、
（Ａ）は斜視図、（Ｂ）は拡大断面図である。FIG. 3 shows a foam sheet used in the embodiment;
(A) is a perspective view, (B) is an enlarged sectional view.
【図４】 （Ａ）は上記発泡材シートの作用を示すため
の断面図、（Ｂ）は（Ａ）のＢ−Ｂ線断面図である。FIG. 4A is a cross-sectional view showing the operation of the foam material sheet, and FIG. 4B is a cross-sectional view taken along line BB of FIG.
【図５】 従来のグロメットの防水構造を示す断面図で
ある。FIG. 5 is a sectional view showing a waterproof structure of a conventional grommet.
【図６】 従来のグロメットの防水方法を示す概略図で
ある。FIG. 6 is a schematic view showing a conventional grommet waterproofing method.
１ グロメット １０ 布線台 １１ 防水用治具 １２ 支持棒 １３ 基板 １４、１５ 電線保持材 １４ａ、１５ａ 電線挿入用長穴 ２３ 発泡材シート ２５ 止水剤 ２６ 塗布具 ｗ 電線 Ｗ 電線群 ３０ グロメット Ｗ／Ｈ ワイヤハーネス DESCRIPTION OF SYMBOLS 1 Grommet 10 Wiring board 11 Waterproof jig 12 Support rod 13 Substrate 14, 15 Electric wire holding material 14a, 15a Long hole for electric wire insertion 23 Foam material sheet 25 Waterproof agent 26 Coating tool w Electric wire W Electric wire group 30 Grommet W / H wire harness
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平８−116615（ＪＰ，Ａ) 特開 平８−340619（ＪＰ，Ａ) 特開 平７−39046（ＪＰ，Ａ) 実開 平１−58222（ＪＰ，Ｕ) 実開 昭64−6723（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) H02G 3/22 B60R 16/02 H02G 3/38 H01B 17/58 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-8-116615 (JP, A) JP-A-8-340619 (JP, A) JP-A-7-39046 (JP, A) 58222 (JP, U) Japanese Utility Model Showa 64-6723 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) H02G 3/22 B60R 16/02 H02G 3/38 H01B 17/58
Claims (2)
ル貫通穴へ装着されるグロメットの防水構造を形成する
方法であって、ハーネスを組立時に電線群を布線する
時、上記線間防水を施す部位の電線群を一対の電線保持
材の電線挿入用長穴に挿入させると共に、挿入した該電
線群を隣接させて１列に並列させ、該並列した電線群に
対して、所要の粘度を有する止水剤を電線間に浸透する
ように塗布し、次いで、該止水剤を塗布した部分に弾性
を有する独立発泡形状の発泡材シートを被せて断面円形
に丸めて、上記グロメットの内部に通すことを特徴とす
るワイヤハーネスを挿通した防水構造の形成方法。1. A method for forming a waterproof structure of a grommet to be mounted in a panel through hole with a wire harness inserted therein, wherein the waterproofing between lines is performed when a wire group is laid when the harness is assembled. The electric wire group at the site is inserted into the long hole for electric wire insertion of the pair of electric wire holding members, and the inserted electric wire group is adjacently arranged in a row so as to have a required viscosity with respect to the parallel electric wire group. The waterproofing agent is applied so as to penetrate between the electric wires, and then the elastic member is covered with a foamed material sheet having an independent foaming shape on the portion to which the waterproofing agent is applied, rounded into a circular section, and passed through the grommet. A method for forming a waterproof structure through which a wire harness is inserted.
トは水および空気を通さないことを特徴とする請求項１
に記載のワイヤハーネスを挿通した防水構造の形成方
法。2. The sheet made of a foam material having a closed cell shape is impervious to water and air.
A method for forming a waterproof structure through which the wire harness according to 1 is inserted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02942797A JP3198962B2 (en) | 1997-02-13 | 1997-02-13 | Method of forming grommet waterproof structure through wire harness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02942797A JP3198962B2 (en) | 1997-02-13 | 1997-02-13 | Method of forming grommet waterproof structure through wire harness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10224960A JPH10224960A (en) | 1998-08-21 |
| JP3198962B2 true JP3198962B2 (en) | 2001-08-13 |
Family
ID=12275849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02942797A Expired - Lifetime JP3198962B2 (en) | 1997-02-13 | 1997-02-13 | Method of forming grommet waterproof structure through wire harness |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3198962B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3417324B2 (en) | 1999-01-14 | 2003-06-16 | 住友電装株式会社 | Waterproof structure and waterproofing method of grommet mounting part of wire harness |
| US20030030206A1 (en) * | 2001-07-23 | 2003-02-13 | Yazaki Corporation | Wire harness arranging-purpose wire holding member and wire harness arranging-method |
| JP4118769B2 (en) * | 2003-09-03 | 2008-07-16 | 矢崎総業株式会社 | Water stop treatment method for wire harness and wire harness |
| JP5521802B2 (en) * | 2010-06-08 | 2014-06-18 | 住友電装株式会社 | Grommet |
| JP6216503B2 (en) * | 2012-11-08 | 2017-10-18 | 三菱重工業株式会社 | Through-hole sealing structure |
-
1997
- 1997-02-13 JP JP02942797A patent/JP3198962B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10224960A (en) | 1998-08-21 |
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